Seems to be something very simple I'm missing, but can't find any example of how to handle such case. I need to construct a switch statement like this ...

I'm trying to show string which has only complete word chain in it. Also wanted to know if there is something as REGEX similar to MySQL in SQL Server. ...

I'm new in Scala and I'm reading fp in Scala. There is an example code in this book and I type this into Idea: Then I get a warning from Idea that ...

I'm using mypy and I have two classes: I have some db function that fetch the data and I end up with these two variables: I want to do pattern m ...

I'm trying to find a pattern in a string. Example: trail = 'AABACCCACCACCACCACCACC" one can note the "ACC" repetition after a prefix of AAB; so the r ...

I'm deserializing JSON payloads using Jackson. I have some fields that can be either Objects or Arrays of Objects. So In my Java code I'm declaring ...

I'm trying to understand singletons. As an exercise I'm manually defining an instance of SingKind for a custom List type: data List a = Nil | Cons a ...

My ultimate goal is to parse the prefix number of a &str if there is one. So I want a function that given "123abc345" will give me a pair (u32, &a ...

array = [2, 4, 3, 9, 6, 5]; and we have to print like this I have tried the normal nested for loop 1st loop for row, 2nd for spaces, and third for ...

Scala3 has dropped general type projection because it was unsound: It was possible to compile code which was failing at runtime. (question edited to ...

I am new to Scala and i am trying to create a function that calculates the amount a certain object appears in a sequence. So in this case we have a se ...

How can I use structural pattern matching for the following use case: Please excuse me for the syntax errors, I have written this to demonstrate my ...

I would love to use the more advanced pattern matching functionalities that c# version 8 through 11 offer in a .NET Framework 4.8-based solution (whic ...

I have a struct in which one of the fields is an enum, and when using a match statement there is a lot of repetition that feels avoidable. Basically ...

I am trying to mutate VecDeque inside a struct. I want to receive an event and delete it from VecDeque. got this error --> src/timeline.rs:33 ...

I hava a mongo object that's looking like this [{ username: "user1", id: "1", Notifications: { history: { Messages: [Object ...

This is a question about pattern matching in Ruby 3. I have a hash: Given an integer (for example, 13), I'd like find the hash key whose hash valu ...

I am trying to create a post endpoint for a particular route but am getting the error message Pattern type is incompatible with expected type foun ...

I've found an unexpected behaviour for Python structural pattern matching that I want to discuss today. All the code there is run with CPython 3.10.8 ...

I'm attempting to deserialize a csv value into a different type of struct based on a value passed into a function. I am not understanding why I am re ...